The Ebyte EWD95M series is industrial mini DIN-rail LoRa DTU radio transceiver adopting military-grade LoRa spread spectrum modulation, supporting 400/433/900MHz multi frequency bands, max 30dBm 1W transmit power, 10km line-of-sight communication distance, RS485/RS232 transparent serial transmission, 8–28V wide DC power supply, triple anti-corrosion PCB coating, -40 to 85 Celsius full industrial temperature range, compact 802828.5mm rail-mounted shell, fully compatible with Ebyte E22 LoRa RF modules for remote PLC telemetry and smart meter IoT deployment.
| Parameter Category | Parameter Item | 400MHz Series | 433MHz Series | 900MHz Series |
|---|---|---|---|---|
| Basic Info | Model List | EWD95M-400SL30,400GL20P,400GL30,400SL22P | EWD95M-433N30,433C30 | EWD95M-900SL22P,900GL20P |
| RF Spec | Frequency Band | 410.125MHz ~ 493.125MHz | 410.125MHz ~ 493.125MHz | 900MHz ISM Band |
| RF Spec | Max Transmit Power | 22dBm / 30dBm | 30dBm | 22dBm |
| RF Spec | Max LoS Range | 10000m | 10000m | 6000m |
| Communication | Serial Interface | RS485, optional RS232 | RS485, optional RS232 | RS485, optional RS232 |
| Communication | Transmission Mode | Full UART transparent transmission | Full UART transparent transmission | Full UART transparent transmission |
| Hardware | Mounting Method | Standard DIN rail mount | Standard DIN rail mount | Standard DIN rail mount |
| Hardware | Module Dimension | 80mm * 28mm * 28.5mm | 80mm * 28mm * 28.5mm | 80mm * 28mm * 28.5mm |
| Electrical | Supply Voltage | 8V DC ~ 28V DC | 8V DC ~ 28V DC | 8V DC ~ 28V DC |
| Environment | PCB Protection | Anti-mold, anti-humidity, anti-salt spray triple coating | Anti-mold, anti-humidity, anti-salt spray triple coating | Anti-mold, anti-humidity, anti-salt spray triple coating |
| Environment | Operating Temperature | -40 Celsius ~ 85 Celsius | -40 Celsius ~ 85 Celsius | -40 Celsius ~ 85 Celsius |
| Compatibility | Matching RF Module | Ebyte E22 400MHz LoRa series | Ebyte E22 433MHz LoRa series | Ebyte E22 900MHz LoRa series |
Technical Specifications
| Modulation | LoRa (military-grade spread spectrum) |
| Frequency Range | 410.125–493.125MHz / 900MHz band (variant dependent) |
| Transmit Power | Up to 30dBm (1W), configurable |
| Communication Range | Up to 10km (line-of-sight) |
| Interface | RS485 / RS232 (transparent) |
| Transmission Modes | Multiple modes; compatible with Ebyte E22 series |
| Power Supply | 8–28V DC (wide voltage input) |
| Dimensions | 80 × 28 × 28.5mm |
| Weight | 32±2g |
| Mounting | DIN-rail (plastic enclosure) |
| Protection | Triple-proof: anti-mold, anti-humidity, anti-salt spray |
| Operating Temp | -40℃ to +85℃ (industrial grade) |
| Certifications | CE, RoHS, SRRC |
| Updated | March 2026 |
Product Details
Military-Grade LoRa Modulation — 30dBm / 10km Range
The EWD95M employs LoRa spread spectrum technology with up to 30dBm output power, achieving reliable communication over 10km in open environments. Its strong anti-interference capability makes it ideal for electrically noisy industrial sites such as factory floors, substations, and outdoor utility installations.
Transparent RS485/RS232 Interface — Plug-and-Play Integration
Supports transparent serial data transmission over RS485 and RS232, enabling seamless integration with PLCs, sensors, meters, and SCADA systems without protocol conversion. Multiple transmission modes and AT command configuration via USB tool simplify deployment.
Triple-Proof Industrial Design — DIN-Rail Mounting, 8–28V Wide Voltage
The plastic enclosure is sprayed with triple-proof coating (anti-mold, anti-humidity, anti-salt spray), rated for -40℃ to +85℃ continuous operation. Standard DIN-rail mounting fits directly into industrial control cabinets. The 8–28V DC wide-voltage input accommodates diverse power sources including 12V and 24V industrial supplies.
Variant Guide: SL / GL / N / C Suffix Explained
RF Performance & Antenna
Dimensions & Wiring
E22 Series Compatibility & Network Topology
Ideal Applications
Resources
Download Datasheet & User Manual (PDF)Download CE / RoHS / SRRC Certificates
Bulk Purchase & OEM Inquiry
Practical Application Scenarios
1. Factory PLC Remote Modbus Telemetry & Production Monitoring
European automation system integrators install EWD95M DIN-rail LoRa DTUs inside electrical control cabinets to realize wireless data transmission between on-site PLCs and central workshop monitoring hosts. The 30dBm high transmit power delivers stable signals across metal workshop frames, triple-proof coating prevents circuit corrosion in humid production workshops, and RS485 transparent transmission natively supports Modbus RTU protocols. It works with Ebyte E810-RS-U01 USB serial converters to sync real-time equipment operating data to industrial cloud MES platforms without expensive wired cable laying.
2. Urban & Rural Smart Water/Gas/Electric AMI Meter Reading System
Municipal energy management contractors deploy EWD95M-433C30 DTUs for distributed smart meter clusters in suburban residential zones. The 10km long line-of-sight coverage eliminates manual patrol meter reading, wide 8–28V DC power supply adapts various cabinet power supply modes, and compact DIN rail mounting fits standard meter control boxes. The LoRa spread spectrum anti-interference design guarantees steady data collection even with dense residential building barriers, and it can form multi-hop wireless networks paired with Ebyte E22 LoRa end modules.
3. Large-Scale Precision Agriculture Soil & Meteorology Remote Monitoring
Global agritech OEMs adopt EWD95M-400GL30 DIN rail radio for farm weather stations, soil moisture and PH sensor aggregators. Ultra-wide -40 to 85 Celsius industrial temperature range supports cold winter and high-temperature summer field deployment, low-frequency 400MHz band provides strong penetration through crop forests and soil mounds. The triple anti-salt spray coating resists farm chemical vapor erosion, transmitting sensor telemetry data back to agricultural cloud irrigation control servers wirelessly.
4. Solar & Wind New Energy Power Station Remote Data Acquisition
Renewable energy engineering firms use EWD95M-900SL22P LoRa DTUs for solar panel combiner boxes and wind turbine sensor terminals. Military-grade LoRa modulation suppresses strong electromagnetic interference from inverters and transformers, DIN rail mini size saves cabinet installation space, and wide voltage input adapts unstable field power supply. The device uploads real-time voltage, current and power generation data to remote energy monitoring platforms for predictive maintenance scheduling.
5. Mine & Tunnel Industrial Equipment Wireless Status Monitoring
Mining infrastructure contractors mount EWD95M-400SL22P DIN rail DTUs inside underground tunnel control cabinets to collect conveyor belt, gas concentration and ventilation machine sensor signals. 400MHz low frequency offers superior diffraction through rock and concrete tunnel barriers, industrial full-temperature design adapts high-temperature underground mining environments, and anti-mold coating avoids circuit failure caused by underground damp air, enabling long-distance wireless data backhaul to ground monitoring rooms.
FAQ Section
1. What is the difference between EWD95M DIN rail DTU and ordinary standalone LoRa radio modules?
EWD95M series integrates LoRa RF chip, industrial power regulation circuit, RS485 isolation circuit and DIN rail plastic shell into one finished device, supporting direct cabinet installation without secondary PCB design. Bare LoRa RF modules require users to design power supply, signal isolation and housing by themselves, while EWD95M realizes plug-and-play Modbus wireless transmission out of the box.
2. Can EWD95M work with Ebyte E22 LoRa modules for point-to-point long-distance communication?
Yes, each frequency band variant of EWD95M fully matches the corresponding E22 LoRa series with identical LoRa modulation parameters, air data rates and frequency channels. Users can build hybrid wireless networks combining rail-mounted DTUs and embedded PCB LoRa modules without extra parameter modification or firmware upgrade.
3. What protection effect does triple-proof conformal coating bring to EWD95M industrial DTU?
The anti-mold, anti-humidity and anti-salt spray coating forms an isolation layer on all PCB traces and components. It prevents short circuit, metal oxidation and component aging in coastal salt fog areas, humid underground tunnels and chemical factory workshops, extending the service life under harsh industrial working conditions.
4. Is EWD95M compatible with standard Modbus RTU industrial communication protocols?
All EWD95M models adopt transparent RS485 serial transmission mode, which does not parse or change original serial data frames. It fully supports Modbus RTU, Modbus ASCII and other mainstream industrial bus protocols used by PLC, frequency converters and smart sensors, requiring no extra protocol conversion hardware.
5. Can transmit power of EWD95M DTU be adjusted via AT serial commands?
Users can switch transmit power between low power 22dBm and maximum 30dBm via UART AT configuration commands. Low power mode cuts power consumption for short-distance indoor cabinet communication, while 30dBm full power unlocks 10km maximum open-air transmission range for outdoor long-distance monitoring projects.
